chore: bump version to 2.3.6

- Version code: 235 → 236
- Version name: 2.3.5 → 2.3.6

This version bump triggers a new release.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: graycreate

config.gradle

@@ -1,7 +1,7 @@
 ext {
     app = [
-            versionCode: 235,
-            versionName: "2.3.5"
+            versionCode: 236,
+            versionName: "2.3.6"
     ]
     android = [
             supportVersion: '26.1.0'